Ireland strikers Callum Robinson and Scott Hogan could be on the move this week.
And Anthony Stokes has completed his fourth move in just two years after he signed a contract with Iranian side Persepolis.
Robinson only joined Sheffield United from Preston last summer on a four-year deal but he has started just nine league games for the Blades this season and is seen as surplus to requirements for the rest of the campaign. Promotion-chasing West Brom have signalled their interest and they hope to agree a loan deal for the rest of the campaign.
Hogan is on loan from Aston Villa to Stoke City but the move has not been a success. The 27-year-old has scored just once since August and has not started a game in three months.
Stoke's loan deal runs until the end of the season but Michael O'Neill's outfit are keen to free up their budget and find another club willing to take him.
One Irish striker definitely on the move is U19 cap Jonathan Afolabi, who has joined Dunfermline on loan from Celtic.
Afolabi joined Celtic last summer after a spell with Southampton but he was unable to force his way into Neil Lennon's first team and he joins compatriot Lee O'Connor in dropping down to Scotland's second tier, O'Connor loaned out to Partick Thistle last week.
Dubliner Ian Lawlor has left Doncaster Rovers for a loan spell with League Two side Scunthorpe United. Shaun Williams has agreed a new deal with Millwall which means he is likely to finish his career with the London club. The 33-year-old agreed a 12-month extension which keeps him at the New Den until the end of the 2020/21 season.
Cork City have signed defender Kyron Stabana on loan from Wimbledon. "We have been chasing him for a while, so we were pleased to get the deal over the line," said manager Neale Fenn.